  <nav class="navbreadcrumb"><i class="fa fa-dashboard"></i> <a href="{:U('Index/index')}">首页</a> > {$main_menu} > {$son_menu}<a class="flush_btn hidden-xs" href="javascript:location.replace(location.href);" title="刷新"><i class="fa  fa-repeat"></i> 刷新</a><a class="flush_btn hidden-xs" href="{:U('Index/index')}" title="返回首页"><i class="fa  fa-home"></i> 返回首页</a></nav>